1 Scope
1.1 This Part specifies the technical requirements for design, manufacture, inspection, test, marking sign, packing and ex-factory documents of bursting disc safety devices.
1.2 This Part is applicable to the following bursting disc safety devices:
— The bursting disc safety devices used for pressure vessels, pressure pipes or other sealing pressure equipments (hereafter referred to as “pressure equipments”) to prevent the overpressure or excess vacuum;
— The bursting pressure of bursting discs is not greater than 500MPa and not less than 0.001MPa.
1.3 This Part is not applicable to the following bursting disc safety devices:
— Pressure equipment, possible to increase pressure abruptly in the operation, reaching reaction rate at detonation degree.
— Bursting disc safety devices under the special requirements in the defence military equipment.
Note: detonation: phenomena generated very differently from the common burning and explosion when the burning rate of the material is as quick as above 1 000m/s.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 567.2 Bursting disc safety devices — Part 2: Application, selection and installation
GB 567.3 Bursting disc safety devices — Part 3: Classification and mounting dimensions
GB 567.4 Bursting disc safety device — Part 4: type test
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
Pressure
Unless otherwise stated, pressure all refers to the gauge pressure.
3.2
Bursting disc safety device
